All this leads to a highly counterintuitive point: technologies designed to increase our control over our attention will sometimes have the very opposite effect. They open us up to a stream of instinctive selections, and tiny rewards, the sum of which may be no reward at all. And despite the complaints of the advertising industry, a state of distracted wandering was not really a bad one for the attention merchants; it was far better than being ignored.

Tim Wu, The Attention Merchants, loc. 635